/*
 * Copyright (C) OpenTX
 *
 * Based on code named
 *   th9x - http://code.google.com/p/th9x 
 *   er9x - http://code.google.com/p/er9x
 *   gruvin9x - http://code.google.com/p/gruvin9x
 *
 * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "opentx.h"

MenuHandlerFunc menuHandlers[5];
uint8_t menuEvent = 0;
uint8_t menuVerticalPositions[4];
uint8_t menuLevel = 0;

void popMenu()
{
  assert(menuLevel>0);
  menuLevel = menuLevel-1;
  menuEvent = EVT_ENTRY_UP;
  TRACE("popMenu(%d)", menuLevel);
}

void chainMenu(MenuHandlerFunc newMenu)
{
  menuHandlers[menuLevel] = newMenu;
  menuEvent = EVT_ENTRY;
  TRACE("chainMenu(%d, %p)", menuLevel, newMenu);
}

void pushMenu(MenuHandlerFunc newMenu)
{
  killEvents(KEY_ENTER);

  if (menuLevel == 0) {
    if (newMenu == menuRadioSetup)
      menuVerticalPositions[0] = 1;
    if (newMenu == menuModelSelect)
      menuVerticalPositions[0] = 0;
  }
  else {
    menuVerticalPositions[menuLevel] = menuVerticalPosition;
  }

  menuLevel++;

  assert(menuLevel < DIM(menuHandlers));

  menuHandlers[menuLevel] = newMenu;
  menuEvent = EVT_ENTRY;
  TRACE("pushMenu(%d, %p)", menuLevel, newMenu);
}

void menuModelNotes(event_t event)
{
  if (event == EVT_ENTRY) {
#if defined(SDCARD)
    strcpy(reusableBuffer.viewText.filename, MODELS_PATH "/");
    char *buf = strcat_modelname(&reusableBuffer.viewText.filename[sizeof(MODELS_PATH)], g_eeGeneral.currModel);
    strcpy(buf, TEXT_EXT);
#endif
  }

  menuTextView(event);
}

void pushModelNotes()
{
  pushMenu(menuModelNotes);
}
